African Journal of
Microbiology Research

  • Abbreviation: Afr. J. Microbiol. Res.
  • Language: English
  • ISSN: 1996-0808
  • DOI: 10.5897/AJMR
  • Start Year: 2007
  • Published Articles: 5037

Table of Content: 4 July; 4(13)

July 2010

Mechanisms of fungal endophytes in plant protection against pathogens

  Fungal endophytes are a group of microorganism associated with plant and have attracted a great interest to botanist, microbiologist and ecologist. Since they have the ability to benefit host plant growth and defense and can produce various potential commercially valued secondary metabolites, an increasing number of reports pay attention to endophytic screening, identification and production. However, little...

Author(s): Fu-kang Gao, Chuan-chao Dai and Xiao-zhen Liu

July 2010

Comparative degradation of sawdust by microorganisms isolated from it

  Microorganisms isolated from sawdust have been demonstrated to be effective in its degradation. Eight bacteria and eight fungi were isolated from wet decaying sawdust. These were tested for their capability to degrade sawdust. Among the bacteria, Cellulomonas sp. was found to be the most effective degrading agent based on its high percentage degradation (18.3%). This was followed by Micrococcus sp....

Author(s): J. A. Lennox, C. Abriba, Bello N. Alabi and F. C. Akubuenyi

July 2010

Adenovirus type 3 infections in camels in Sudan

  The incidence of adenovirus type 3 infections in camels in Sudan was studied. Lungs of Camel with pneumonia lungs (n = 239) were collected from slaughter houses at four different areas in Sudan. Adenovirus type 3 antigen was detected in 1.3% of 239 tested camel lungs by the use of sandwich ELISA. Specimens from Northern (3.3%) and Central Sudan (1.2%) were found to be positives. Direct fluorescent antibody...

Author(s): K. S. Intisar, Y. H. Ali, A. I. Khalafalla, K. M. Taha and  Mahasin E. A. Rahman

July 2010

Prevalence and characterization of extended-spectrum beta-lactamase production in clinical isolates of Klebsiella spp.

  Extended-spectrum beta-lactamases (ESBLs) are most prevalent in Klebsiella pneumoniae. This organism is frequently isolated from clinical specimens and can cause septicemia, pneumonia or urinary tract infection. We investigated a spread ofKlebsiella spp. isolates producing ESBL in a university hospital of Sanandaj-Iran.Over one year period, a total of 48 K. pneumoniae isolates, were...

Author(s): Rashid Ramazanzadeh

July 2010

Impact of multi drugs resistant bacteria on the pathogenesis of chronic suppurative otitis media

  One hundred twenty patients with chronic suppurative otitis media (CSOM) in Basrah, 65 (54.2%) males and 55 (45.8%) females, with male: females ratio (1.2:1) and 60 individual without otological problems as control group were included in this study, which done during the period between March 2009 and January 2010. This includes the collection of aural swab samples, culturing of samples, identification of...

Author(s): Ihsan E. Alsaimary, Ahmed M. Alabbasi and Jassim M. Najim

July 2010

Distribution of pathogen in the Bohai sea in spring and summer

  The aquicultural pathogen Vibrio spp. is popular and harmful to mariculture animals and even resulted in human enterogastrtis. However, little is known about the abundance and distribution of marine pathogen in Bohai Sea. In the present study, the distributions of the typical pathogens, including Escherichia Coli, Vibrio parahaemolyticus, Vibrio alginolyticus, Vibrio...

Author(s): Peng Zaiqing, Zhuang Zhixia, Huang Rongfu and Lu Zhiqiang

July 2010

Comparative assessment of antibacterial activity of uvaria chamae parts

  Methanolic extracts of the root, stem and leaf of Uvaria chamae were evaluated for their antibacterial activity against Methicillin-Resistant Staphylococcus aureus(MRSA), Staphylococcus aureus, Escherichia coli, Klebsiella spp, Proteus spp, and typed strains E. coli ATCC 25922, S. aureus ATCC 25923 and Pseudomonas aeruginosa ATCC27853...

Author(s): B. B. Oluremi, M. O. Osungunna and O. O. Omafuma

July 2010

Preliminary evaluation of wastewater effluents from two food companies in Nigeria

  Effluent samples from two top Nigerian food and beverage industries, swords food industry and 7-Up Bottling Company, Ibadan, Oyo State, Nigeria were investigated for microbial loads, physiochemical properties and presence of heavy metals. While repeated sampling revealed two bacteria and a fungus from the effluents of 7-Up bottling company, 15 bacteria and 5 fungi were isolated from Swords foods Industry. The...

Author(s): A. Osho, O. O. Mabekoje and O. O. Bello

July 2010

Microbiological impacts of produce water discharges in nearshore shallow marine waters near Chevron’s Escravos tank farm, Nigeria

  Microbiological and Physicochemical survey was undertaken in produced water and its receiving environment with the aim of verifying the likely impacts of produced water constituents on the immediate receiving marine near shore shallow environment. The sampling was carried out in two seasons, late wet season and late dry season. The results obtained indicate that the chemical constituents of the discharged...

Author(s): Chuma C.  Okoro

July 2010

Antibacterial activity of cyanolichen and symbiotic cyanobacteria against some selected microorganisms

  Lichen (Collema auriforme) collected from Kolli Hills of Tamil Nadu, India and two symbiotic cyanobacteria (Aphanocapsa sp. NTK28, and Nostoc sp. NTK29) were taken for screening antibacterial activity. Alcohol and acetone were used as solvents for extraction of compounds from lichen and symbiotic cyanobacteria. Four clinical isolates of Pseudomonas sp., Escherischia...

Author(s): R. Shyam Kumar, N. Thajuddin and C. Venkateswari

July 2010

Radioresistance analysis of Deinococcus radiodurans gene DR1709 in Escherichia coli

  Deinococcus radiodurans’ extraordinarily strong radiation resistance was attributed to its high Mn2+ content. DR1709 was one predicted Mn2+ transporter, but after it was disrupted, there were at least ten proteins whose expressions changed markedly, suggesting that the proteins which were expressed differently between the wild type and the mutant may play key roles in this bacterium’s...

Author(s): Shu Haiyan and Tian Baoming

July 2010

Molecular detection of hepatitis B virus (HBV) among voluntary blood donor's HBsAg positive in shahrekord, Iran

  Hepatitis B virus, a common cause of viral hepatitis, consumes a large portion of health resources in developing countries. Hepatitis B virus (HBV) prevalence has been decreased dramatically in Iran population during the last decade, and now it is classified as having low endemicity for hepatitis B infection. Improvement of the people’s awareness about HBV risk factors, national vaccination program...

Author(s): Elahe Tajbakhsh, Hassan Momtaz, Manouchehr Momeni and Sodabe Hamedi

July 2010

Survival of free-living and plankton-associated Escherichia coli in the final effluents of a waste water treatment facility in a peri-urban community of the Eastern Cape Province of South Africa

  Escherichia coli remains a major threat in many places around the globe as a major causative agent of diarrhea and its reservoir in the estuarine environment may play an important role in the survival and transport of pathogenic strains. The final effluents of a peri-urban waste water treatment facility were assessed for surviving E. coli community as free-living or plankton-associated cells in relation to...

Author(s): Augustina N. Osode and Anthony I. Okoh

July 2010

In silico identification of MicroRNAs and their targets in diatoms

As one of the most successful groups of microalgae in the contemporary ocean, diatoms are of ecological, biotechnological and evolutionary significance. Recent research has revealed for the first time the presence of functional silencing machinery in diatoms. Nevertheless, no microRNAs (miRNAs) participating in their gene regulation have been reported. Based on the principle of sequence conservation, previous known...

Author(s): Yong zhong Lu and Jie Liu

July 2010

Manipulation of fermentation conditions on production of Tannase from agricultural by-products with Aspergillus oryzae

  Tannin acyl hydrolase is an industrially important enzyme that is mainly used in the food and pharmaceutical industry. As the range of applications of this enzyme is very wide, there is always a scope for novel Tannase with better characteristics, which may be suitable in the diverse fields of applications. The present work has been taken up with a view of exploring the possibilities of using agricultural by...

Author(s): R. Paranthaman, R. Vidyalakshmi , S.Murugesh and K. Singaravadivel 

July 2010

Use of nitrous acid mutant of Aspergillus niger for citric acid production from local cane-molasses

  In this study, the enhancement of citric acid production from local molasses was attempted by mutagenesis. A local stain of Aspergillus niger was isolated from lemon leaves and treated with nitrous acid. The obtained mutant and the wild type ofA. niger were separately used for the bioconversion of the local molasses into citric acid. The molasses fermentation was carried out at 30°C in a...

Author(s): Kabera Justin, Ugirinshuti Viateur and Mukantirenganya Prudentienne

July 2010

Moulds on paintings in Serbian fine art museums

  The main reasons of fungal expansion in museums are inadequate relative humidity and temperature and the spore’s germination can be controlled by regulation of these two factors. Numerous paintings, originated from 11 Serbian museums, were analyzed for presence of moulds. Samples from canvas, dyes and wooden frames with visual changes were subjected to the analysis. Species of...

Author(s): Jelena Vukojević and Milica Ljaljević Grbić

July 2010

Antibacterial screening of the root, stem and leaf extracts of Terminalia albida sc. elliot on selected pathogenic bacteria

  The ethanol extracts of the root, stem and leaves of Terminalia albida were evaluated for their antibacterial activities using agar diffusion method to justify the ethno botanical uses of the plant parts by the traditional healers in Nigeria. The ethanol extracts of the root, stem and leaves were effective against the test bacteria...

Author(s): S. M. Ayodele, G. Alpheus and O. M. Iruaga

July 2010

A taurine phenolic compound (TPC) protect from AAP hepatotoxicity through involvement of Nrf2/ARE pathway

  Oxidative stress is a main contributor to the hepatotoxic effects of acetaminophen, the Nrf2/ARE pathway has been characterized as an important endogenous mechanism for combating oxidative stress. Taurine plays various important roles in a large number of physiological and pathological conditions in human body, such as the antioxidant, anti-inflammatory effects. It proves that phenol compound has antioxidant...

Author(s): Qiu Feng and He Xiao-Jing